code: def test_ontonotes_can_read_conll_file_with_multiple_documents(self):
      reader = Ontonotes()
      file_path = self.FIXTURES_ROOT / "coref" / "coref.gold_conll"
      documents = list(reader.dataset_document_iterator(file_path))
      assert len(documents) == 2
  
file_path: magnitude/pymagnitude/third_party/allennlp/tests/data/dataset_readers/dataset_utils/ontonotes_test.py
imports: from __future__ import division
  from __future__ import absolute_import
  from nltk import Tree
  from allennlp.data.dataset_readers.dataset_utils import Ontonotes
  from allennlp.common.testing import AllenNlpTestCase
label_desc: Use image node_id 3 for calling the TestOntonotes obj's underlying member method code with example usage: obj.test_ontonotes_can_read_conll_file_with_multiple_documents() without return types